Genealogic tree of the mutation events in the 5′ nocoding regulatory region of the BCL-6 gene derived from DLBCL.

DLBCL is sample 4 in Table 1. Clonal relationship of the molecular clone sequences (ovals) is shown. Number of mutations is indicated along the lines in bold. The mutations are listed by location as specified in “Materials and Methods” and the legend to Figure1.